Apparatus for applying soles to shoes



Dec. 6, 193 8m 12,138 60.

APPARATUS FOR APPLYING SOLES 'IO SHOES Filed NQV. 13, 1936 2 Sheets-Sheet 1 Tigfl.

Dec. 6, 1938. J HNN 1 2,138,960

' APPARATUS FOR APPLYING SOLES TO SHOES Filed Nov. 13, 1936 2 Sheetg-Sheet 2 Fig. m6 m4 Patented Dec. 6, 1938 UNITED STATES PATENT EMILE United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application November 13, 1936, Serial No. 110,113

11 Claims.

This invention relates to improvements in apparatus for use in applying soles to shoe bottoms and is illustrated herein as embodied in a structure intended particularly for use in ce- 5 ment attaching soles to shoes.

It is an object of the invention to provide improved means for supporting and applying the desired amount of pressure to the sole exten sion, including the welt in the case of a welt 119 shoe, of a shoe in which the margin of the sole extends beyond the boundaries of the lasted upper. While the illustrated mechanism was developed particularly for use in cement attaching soles to mens welt shoes with the aid of a cement sole attaching machine of the character disclosed in United States Letters Patent No. 2,047,185, granted July 14, 1936 upon an application filed in the names of Milton H. Ballard et a1., it should be understood that the invention is not limited in its utility to embodiment in a machine of that type, nor is it limited to use in the manufacture of mens welt shoes.

In accordance with the foregoing, a feature of the invention comprises improved apparatus for exerting pressure upon a welt holddown in a sole applying machine by means of a device which may be manually operable, independently of the sole attaching pressure otherwise applied by the machine, to exert controlled pressure upon the welt or sole extension after the said attaching pressure has been applied. The advantage of this lies in the fact that it permits the major sole attaching pressure to be applied exactly as desired to sink the shoe sole into the press pad just the right amount to secure the desired degree of roll or curvature in the shoe bottom, after which the welt holddown can be controllably forced down upon the welt or sole extension with the right amount of pressure to form the same or, in the case of a welt, to produce secure adhesion to the sole margin without danger of bending the welt or sole extension downward or spoiling the conformation of the sole bottom produced by the press pad in the major pressure applying operation.

Included in the invention is a welt holddown for the heel portion of a welted heel seat shoe, in addition to the usual forepart holddown and as illustrated the heel and forepart holddowns may be independently operable in the application of pressure to provide for different requirements in this respect at the forepart and heel portion respectively.

In connection with the double-ended holddown $35 arrangement another feature of the invention resides in so mounting one of the holddowns as to permit it to be swung into an elevated position where a shoe may be inserted and the shoe and holddown may then be swung downward in such a manner that the other end of the shoe will slide lengthwise into the other holddown. In the illustrated machine the heel end holddown is mounted to swing vertically and in its downward movement the toe end of the shoe slides forward into the forepart holddown.

A further feature of the invention relates to mechanism for so interconnecting the pressure applying members which engage the cone of the last and the toe portion of the lasted shoe to force the shoe and sole against the press pad as 1 to facilitate their cooperation with the holddown elements regardless of the size of the shoe being operated upon by the latter.

With the above and other objects and features in View, the invention will now be described with reference to the accompanying drawings in which Fig. 1 is a view in front elevation of the entire apparatus;

Fig. 2 is a view in front elevation upon an enlarged scale showing the manner in which the lasted shoe is inserted;

Fig. 3 is a view looking from the right hand side of Fig. l and partly in cross section through the heel portion of the shoe and holddown, and

Fig. 4 is a View similar to Fig. 3 looking from the left hand side of Fig. l and partly in section through the forepart of the shoe and the forepart holddown.

The holddown and holddown operating apparatus of my invention are illustrated herein as embodied in a cement sole attaching machine of the type disclosed in said Ballard et a1. Patent No. 2,0 l7,185. Accordingly, the main casting E2 of a pad b'ox similar to that disclosed in United States Letters Patent No. 2,063,041, granted December 8, 1936, upon an application filed in the name of Lloyd G. Knowles, is shown (Fig. 1) as secured by screws It to a forwardly projecting portion of a shelf or bracket is which projects radially of the rotary turret of the machine. The press pad I8, contained in the pad box l2, may be of any desired type.

Supported over the forward portion of the pad is is a forepart welt holddown 28 which may be like that shown in United States Letters Patent No. 2,074,834, granted March 23, 1937, upon an application filed in my name, to which reference may be had for a full description of its structure, mounting and operation.

At the heel end or" the pad box l2 will be seen apparatus for positioning the heel end of a shoe and a sole relatively to each other constructed substantially in accordance with the disclosure in United States Letters Patent No. 2,005,755, granted June'25, 1935, upon an application filed in the name of Francis J. Better. To certain parts of this heel end shoe and sole positioning apparatus I have applied the same reference numerals which designate those parts in the patent and it will be seen that there are sole engaging fingers I 5| and shoe engaging fingers I 53 which are carried by a group of castings I60, 200, 202 secured together by cap screws 204 and arranged for adjustment lengthwise of the pad and adapted to be locked in adjusted position upon the pad box by a clamping screw I66, all as more fully described in the said patent.

Hinged to the casting 202 by a pivot pin 20 are a pair of plates 22 to which are hinged by pivots 24 a pair of swinging arms 28. The ends of the arms 28 are in turn pivoted at 30 to the heel end welt holddown member 32 which is formed. in cross section, as shown in Fig. 3, so as to enter the welt crease of a lasted shoe 34 and bear upon the welt 36 thereof.

The welt holddown member 32 is provided with a rearwardly extending handle 38 by means of which it may be swung back into the position shown in broken lines in Fig. 2 where, when not in use, it will rest upon a shelf 40 secured to the top of the casting 202.

A rigid, fiat plate 42, out out to receive the cone portion of the last, is placed loosely on top of the holddown member 32 and serves to transmit downward pressure to the latter, pins 44 extending downward from the plate and engageable with the sides of the member 32 preventing the plate from excessive lateral displacement and a pin 46 passing through a hole in the handle 38 positioning the plate longitudinally of the holddown.

The mechanism for applying sole attaching pressure to the shoe 34 and a sole 48 positioned upon the press pad I8 is substantially the same as that disclosed in the said Ballard et a1. patent, referred to above, and the same reference numerals used in that patent to designate certain parts of the pressure applying mechanism are used herein to designate corresponding parts of the machine. For a full description of all the cooperating parts of the machine, reference may be had to the said patent.

Between uprights 304', 306 are pivoted upon a shaft 3I8 two pressure transmitting levers 3M and 3I6 the forward ends of which overlie the press pad I8 when the parts of the machine are in the positions illustrated in Figs. 3 and 4. The upper ends of the uprights 304, 306 are connected by cross head 3I0 in which are guided for right line vertical movement two rods 320, 334. To the rod 326 is pinned a member 324 which extends outward and beneath the outer end of the lever 3 I4. The under side of the outer end of the lever 3I4 is formed with a convex surface 326 adapted to bear on a flat surface formed on the upper side of the member 324. The latter is held up against the lever 3I4 by a compression spring 328 arranged on the rod 320.

Beneath the lever 3I6 a member 332 similar to the member 324 is mounted on the rod 334' and is upheld by a compression spring 336.

In the outer ends of the members 324, 332 are mounted respectively slidable blocks 390, 39I which carry the last plate 393, adapted to engage the top of the cone of the last, and the toe pad 395 for engaging the forepart of the shoe.

Referring particularly to Figs. 1 and 4, the toe pad 395 is fixed to a post 50 which is in turn rigidly fixed in the block 39I Surrounding the post 50, and vertically slidable thereon, is a member 52 which is normally elevated by a light spring 54 inserted in a hole in said member and bearing at its lower end upon a plate 56 fixed to the post 50. v

A U-shaped pressure device 58, which surrounds the toe pad 395, is suspended from the member 52 by alined pivot pins 60 so that the pressure device may swing freely about their common axes. The end of the pivot pin 62 is reduced, as shown at 64, and engages a groove 66 in the post 50 to prevent the member 52 from turning about the post, while not interfering with its vertical sliding movement thereon. The pressure device 58 is adapted to engage the holddown band 26, to apply pressure thereto, and may be made of rubber firm enough to transmit the necessary amount of pressure.

The mechanism for actuating the pressure device 58 manually to apply downward pressure controllably to the welt 36 will now be described.

A hand lever 68 is pivoted at 10 to a bracket I2 arising from the member 332 and a short bell crank arm 74 of said hand lever is connected by a pivoted link I6 to a lever 18 the rear end of which is pivoted at to the member 332. Pivoted at 82 to the front end of the lever I8 is a swinging dog 84 which is normally held approximately vertical by a light spring 86. The lower end of the dog 84 is rounded and is adapted to engage the top of the member 52 upon which it can rock slightly. From the foregoing it may be seen that when the hand lever 68 is pulled forward the dog 84 will be forced down and the pressure device 58 will consequently be forced down on top of the holddown band 26.

In order to maintain the pressure thus applied the hand lever 68 is provided with a ratchet segment 88 and a pawl 90, journaled upon the pivot 80 is drawn into engagement with the ratchet segment by a spring 92, thus holding the lever in any forward position to which it has been drawn until the pressure upon the work is released by the rise of the member 332 whereupon, since the pawl 80 is carried by said member, the tail portion 94 of the pawl strikes an adjustable stop screw 95 carried by the upright 306 and the pawl is disengaged from the ratchet segment 88, automatically unlocking the holddown, whereupon a torsion spring 98 which surrounds the pivot I0 and bears against a pin I00 fixed in the hand lever 68 throws the said hand lever back up to its original position, lifting the dog 84' and permitting the'spring 54 again to elevate the pressure device 58 away from the holddown band 26. 1

It will be observed that the pivotal mounting 60, 62 of the pressure device 58, permitting the latter to swing freely about a transverse axis above the holddown band, allows the pressure device to accommodate itself automatically to the longitudinal inclination of the holddown when the latter has been adjusted to the welt crease of the shoe.

The manually operable mechanism for controllably applying downward pressure to the heel end holddown 32 is generally similar to that just described in connection with the forepart holddown and comprises a hand lever I02 pivoted at I84 to a bracket I 06 arising from the member 324.

A short bell crank arm I08, rigid with the lever 582, is pivotally connected by a link IIO to an arm H2 the-rear end of which is pivoted at II4 to a support IIB which is integral with the member 324. A ratchet segment I I8 fixed to the lever I02 is engaged by a pawl I20 which is journaled upon the pivot I I4 and drawn toward the ratchet segment by a spring I22. Threaded through the tail end I24 of the pawl I20 is an adjustable screw I26 the point of which engages a lug I28 upon the upright 304 when the member 324 rises, thus disengaging the pawl from the ratchet and allowing the lever I02 to be raised.

The front end of the arm II2 rests upon an equalizing bar I30 to the ends of which are pivotally connected rods I32 which are guided for vertical movement in bushings I34 secured in lateral projections I36 of the block 390.

Springs I38 surrounding the rods I32 tend to elevate the latter and throw the hand lever I02 upward. The upward movement of the rods I32 is limited by pins I40 which strike the under sides of the projections I36 and when the hand lever I02 is pulled forward the rods I32 are lowered into engagement with the plate 42, forcing the same downward to apply downward pressure to the holddown band 32.

For the purpose of facilitating the correct positioning of the toe post which carries the pressure device 58 and the block 390 which carries the last engaging member 393 a stud I42 is secured in the support H6 by a set screw I44 and upon this stud is journaled a hub I46 integral with the handle 420 and surrounded by a torsion spring I48 which tends torotate it and the handle 420 in a clockwise direction, as viewed in Fig. 1.

An arm I50 extending downward from the hub I45 is forked at its lower end to provide two fingers I52, I54, as shown in Fig. 3. The finger I52 is connected by a link I56 to a bracket I58 fixed to the under side of the toe post slide block 39I and extending rearward therefrom.

The finger I54 has pivoted thereto at I60 ahorizontal rod I52 which passes loosely through a hole in the rear arm I64 of a lever movable about a vertical pivot I68 secured in the member 324. The forwardly extending arm I'I0 of the lever engages in an opening H2 in the slide block 390. A light compression spring I'I4 surrounds the portion of the rod I62 which extends to the left of the lever arm I64 (see Fig. 1) being held between the lever arm and a nut I16 threaded upon the end of the rod.

It may now be seen that the torsion spring I48 which tends to throw the handle 420 to the right, as viewed in Fig. 1, causes the toe post to be moved toward the left and the heel engaging member and the pressure rods I32 to be moved toward the right whereas when the handle 420 is swung toward the left those elements will be moved toward each other, the movement of the heel slide block 390 being effected yieldably by reason of the spring I14.

In operation, a sole 48 having been placed upon the pad I8 and positioned by the sole gages, the heel end of a lasted shoe 34 is placed in the heel end holddown band 32 with the lower inner edge of the latter engaged in the welt crease around the heel seat of the shoe; this is done with the holddown in its elevated position. The shoe with the holddown embracing its heel end is now swung forward with its toe end downward upon the sole 48, as shown in Fig. 2, the forepart of the shoe being pushed into the forepart holddown band 26 and the shoe being placed down upon the sole. Both holddowns being properly adjusted to the welt crease of the shoe, the handle 420 is pulled forward, swinging the pressure mechanism over the shoe, as described in the Ballard et a1. patent, and the pressure levers 3I4, 3I6 are operated to press the shoe and sole together upon the pad I8, the pressure being adjusted to produce the desired effect upon the shoe bottom.

With the work under pressure, the forepart holddown 26 is forced down by operating the hand lever 68 and the heel end holddown 32 is forced down by operating the hand lever I02, the downward pressure in each instance being controllably applied and locked by the pawls 90, I02.

Having described the invention, what is claimed as new and desired to be secured by Letters Patent of the United States is:

1. In a sole attaching apparatus, a press pad adapted to support a lasted shoe, power operated pressure mechanism for pressing the shoe'upon the pad, a welt holddown adapted to be fitted into the welt crease of the shoe, and a manually operated pressure device adapted to be moved into engagement with said holddown to press the latter upon the sole extension of the shoe.

2. In a sole attaching apparatus, a press pad adapted to support a lasted shoe, power operated pressure mechanism including a toe pad engageable with the shoe to press the shoe upon the press pad and a toe post which sustains said toe pad, a welt holddown, a pressure device which is slidably mounted upon the toe post, and means for moving the pressure device into engagement with the holddown to press the latter upon the sole extension of the shoe.

3. In a sole attaching apparatus, a press pad adapted to support a lasted shoe, power operated pressure mechanism including a toe post which carries a toe pad engageable with the shoe, and separate manually operated means operating entirely independently of the toe post movement and position, but including a pressure device slidably mounted upon the toe post, for applying pressure upon the sole extension of the shoe independently of the power pressure.

4. In a sole attaching apparatus, a press pad adapted to support a lasted shoe, power operated pressure mechanism for pressing a shoe upon the pad, a manually operated welt holddown adapted to press the sole extension of the shoe toward the press pad independently of the power pressure, means for locking the holddown in pressure applying position, and means for automatically unlocking the holddown when the power pressure is released.

5. In a sole attaching apparatus, a press pad adapted to support a lasted shoe, pressure applying means comprising a toe pad and a. last plate supported above the press pad and movable longitudinally of the shoe, and manually operated means for moving the toe pad positively toward or from the last plate and simultaneously moving the last plate yieldingly toward or positively from the toe pad.

6. In a sole attaching apparatus, a press pad adapted to support a lasted shoe, a forepart welt holddown movable toward the pad to apply pressure to the sole extension of the shoe, a heel end welt holddown movable toward the pad to apply pressure to the sole extension of the shoe, and means for moving each of said holddowns toward the pad independently of the other.

7. In a sole attaching apparatus, a press pad adapted to support a lasted shoe, a forepart welt holddown movable toward the pad to apply pressure to the sole extension of the shoe, a separate heel end welt holddown movable toward the pad to apply pressure to the sole extension of the shoe, and independent manual means for moving each of said holddowns toward the pad independently of the other.

8. In a sole attaching apparatus, a press pad adapted to support a lasted shoe, a forepart welt holddown, a heel end welt holddown, separate pressure devices for forcing said holddowns against the sole extension or welt of the shoe, and means for moving said pressure devices 1ongitudinally of the shoe simultaneously toward or from each other.

. 9. Welt holddown apparatus, comprising a holddown element formed to embrace the heel end of a shoe and fit in the welt crease thereof, a pressure device including a pair of sli-dable rods one end of each of which is arranged to operate upon the holddown element, an equalizing bar connecting the opposite ends of the rods, and means for applying pressure to the center of said bar. 7

10. Welt holddown apparatus, comprising a holddown element formed to embrace the heel end of a shoe and fit in the welt crease thereof, and a vertically swinging mounting in which said holddown element is pivotally supported.

11. Sole attaching apparatus, comprising a press pad, a holddown element formed to fit in the welt crease of a shoe, a swinging mounting in which said holddown element is pivotally supported to swing in a vertical are from the press pad to a position remote therefrom, and a support at said remote position adapted to sustain the holddown element.

SIDNEY J. FINN. 

